Hello!

The patch below produces a ‘clang’ package that contains
‘clang-tools-extra’ commands¹.

The problem is the size.  Before:

--8<---------------cut here---------------start------------->8---
$ guix size /gnu/store/qxdpxbvfdxfy5dnz4haql4xlxpmb5r6b-clang-10.0.0 |tail -1
total: 995.2 MiB
$ guix size /gnu/store/qxdpxbvfdxfy5dnz4haql4xlxpmb5r6b-clang-10.0.0 |head -2
store item                                                       total    self
/gnu/store/qxdpxbvfdxfy5dnz4haql4xlxpmb5r6b-clang-10.0.0           995.2   456.5  45.9%
--8<---------------cut here---------------end--------------->8---

After:

--8<---------------cut here---------------start------------->8---
$ guix size /gnu/store/5h3xgpg33wip2b8ccri690jp6ikbq16s-clang-10.0.0 |tail -1
total: 1525.4 MiB
$ guix size /gnu/store/5h3xgpg33wip2b8ccri690jp6ikbq16s-clang-10.0.0 |head -2
store item                                                       total    self
/gnu/store/5h3xgpg33wip2b8ccri690jp6ikbq16s-clang-10.0.0          1525.4   986.8  64.7%
--8<---------------cut here---------------end--------------->8---

(How they manage to fill that much disk space, I wonder.)

Any idea how to best package it?

We could of course have a ‘clang-full’ package, but it seems wasteful.
We could also have a separate output for the extra commands, but it’s
inconvenient.  It would be ideal to have a ‘clang-tools-extra’ package
that depends on ‘clang’, but building them separately appears to be
impossible.

Thanks in advance!  :-)

Ludo’.

¹ https://releases.llvm.org/10.0.0/tools/clang/tools/extra/docs/index.html